参数资料
型号: MAX5316GTG+T
厂商: Maxim Integrated Products
文件页数: 14/33页
文件大小: 0K
描述: IC DAC 16BIT SPI 24TQFN
产品培训模块: Obsolescence Mitigation Program
标准包装: 2,500
设置时间: 3µs
位数: 16
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
电压电源: 模拟和数字,双 ±
功率耗散(最大): 2.29W
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 24-VFQFN 裸露焊盘
供应商设备封装: 24-TQFN-EP(4x5)
包装: 带卷 (TR)
输出数目和类型: 1 电压,单极;1 电压,双极
21
MAX5316
16-Bit, ±1 LSB Accuracy Voltage Output
DAC with SPI Interface
16-Bit Ideal Transfer Function
The transfer function for the MAX5316 is given by:
OUT
REF
16
CODE
VV
2
(DIN code from 0x0000 to 0xFFFF)
=
×
For the simple binary case and:
OUT
REF
16
REF
OUT
REF
16
(CODE 0x8000)
VV
2
(DIN code from 0x8000 to 0xFFFF)
V
CODE
VV
2
(DIN code from 0x0000 to 0xFFFF)
=
×
=
×
+
For the two’s complement case.
Straight Binary vs. Two’s Complement
Table 1 and Table 2 show the math necessary to convert
the DIN code into VOUT for the 16-bit DAC. 1 LSB is
equal to VREF/216.
Input Range
The range of DIN is summarized in Table 3 and Table 4.
Also shown are the range values for the MAX5316 with a
4.096V reference. Note that VREF is the reference voltage
applied to REF and 1 LSB is equal to VREF/216.
Table 3. DIN Range (Straight Binary Mode)
Table 4. DIN Range (Two’s Complement Mode)
Figure 3. DIN to VOUT Transfer Curve
DIN
VOUT
VREF
0V
0x0000
0x8000
0x0000
0xFFFF
STRAIGHT BINARY
0x7FFF
TWO’S COMPLEMENT
ZERO-SCALE
MIDSCALE
FULL-SCALE
VREF/2
RANGE
DIN CODE
VOUT (V)
MAX5316 VALUE (V)
Minimum
0x0000
0
Maximum
0xFFFF
(VREF - 1 LSB)
4.095938
RANGE
DIN CODE
VOUT (V)
MAX5316 VALUE (V)
Minimum
0x8000
0
Maximum
0x7FFF
(VREF - 1 LSB)
4.095938
Table 1. Straight Binary Mode
DIN CODE
EQUATION FOR VOUT
RANGE
0x0000 to 0xFFFF
0V to (VREF - 1 LSB)
OUT
REF
16
CODE
VV
2
=
×
Table 2. Two’s Complement Mode
DIN CODE
EQUATION FOR VOUT
RANGE
0x8000 to 0xFFFF
0V to (VREF/2 -1 LSB)
0x0000 to 0x7FFF
VREF/2 to (VREF - 1 LSB)
REF
OUT
REF
16
V
CODE
VV
2
=
×+
OUT
REF
16
CODE 0x8000
VV
2
=
×
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